sell the smaller parts of you Apple's on Ebay, the laptop in parts ... they still sell for reasonable price. Sell the empty G5 tower locally to someone who wants to use it for a Hackintosh project .. With a little luck you sell well and you can afford yourself another working G4 or G5 powermac. All you have to to then is to transfer one of your licences to the new machine.

Think positive, it seems you've got nothing to loose.